Walter rempen



March 10, 1931. w. REMPEN I 1,795,968

HEATING STOVE Filed Jan. 28, 1929 VENTOR c .2: M1 'ATTORNEY 29 crank or the like.

c9 termediary of the worm.

Patented Mar. 10, 1931 g I a 1 57 1 w gs; 3w Pei El a ii WALTER REMIEEN, orHANovr ia, GERMANY, assre aon T enact? Id. 313833, or new YORK, N. Y.

i-marrne s'rovu' Application 'filed ianuaryas, 1929, Serial No. estate, and in ma April as, 1924.

5 This improved stove is so designed that it can be charged particularly easily which is rendered possible by the provision of a particularly designed charging device known, it is true, already in connection withlignite coke l ovens, but being herein accommodated to stoves in a very practical manner. The fuel is conveyed into the combustion'chamber of the stove upwardly by means of a worm arranged in the lowermost'part of the same.

The worm can be turned or rotated by any desired means, for instance by means of a vertical shaft extending, from the conveying worm upwardly through the stove and being provided at its upper end with a grip or Feeding the conveying worm with the disintegrated fuel can be effected in any desired manner, preferably in the same manner as in lignite coke ovens having a coke conveying worm. Feeding the fuel into the combustion space of the stove by means of the worm is particularly useful in the case of room stoves in that no shovels need be used and no dust is produced.

As the stove has nooven it is devoid of 6 cooking and roasting spaces, and it is, therefore, possible to provide a fuel storage space also above the combustion chamber. In this case the worm shaft or at least that part of it which is located between the worm and said upper fuel space is made hollow, and the upper fuel is conducted to the lower fuel through that hollow shaft or hollow portion of the shaft so that the upper fuel is aiso conveyed into the combustion space by the in- The efficiency of the stove can be increased by the provision of holes in the bottom of the combustion'space so that air, i. e. combustion air, can find direct access to theburning or glowing lignite coke.

The invention is illustrated diagrammatically and by way of example on the accompanying drawing which shows a vertical axial section through a stove designed according to this invention.

The conveying worm a is arranged in the lowermost part of the stove and to a hoilow shaft 6 which extends upwardly through the combustion space and the upper end of which is shaped somewhat like a hop per. This hopper-like end of the hollow shaft 5 is connected with thelower end of a vertical solid shaft 6 by means of a so-called arm-cross (Z. The upper endof the shaft '6. is provided with a crank f, by means of lowermost portion 9 of the funnel-shaped bottom of a vertical receptacle h which is a storage receptacle for the disintegrated ligni'te coke. When the crank f is turned, the arms of thecross (Z causes a certain amount of the coke to fall down into and through thehollow shaft Z) to the space containing the worm a. As the worm'is turned" or rotated, the coke is now also conveyed upwardly into the combustion space, as already explained.

Below the hopper c a curved scraper 2' is aflixed to the shaft 6, and just above the perforated bottomplate of the combustion space a stirring'arm 7c is also secured to the shaft 6. m denotes the perforations of the plate Z. The combustion space is 'formedby thisplate and by a bell-shaped ceiling 0 below which the fuel forms a hill a. As the shaft Z) is revolved to operate the feed screw a, the 'scraper i'revolves with the shaftand it serves to dislodge the ash formed by the coinbustion of the fuel on the top of the pile n so that the ash works down and I passes through. the apertures in the plate Z into the ash compartment The stirring arm also revolves with the shaft 5 and it serves to stir or break up the fuel which is fed upwardly by the screw a. The hot combustion gases pass away from the topof the fuel {hill 1?. into a tubular space p formed by and be tween the outer wall of the stove and an inner wall 1* located between said outer wall and the coke receptacle h. The other tubular space formed. by, and between this receptacle and the inner wall 1 forms an air passage which communicates with the air in the room through apertures s. The fresh air to be heated enters through bottom apertures, as indicated by the arrows. These apertures receive the fresh air through the annular passage g. If represents a chamber comprising an ashpit to receive the ashes falling through the apertures min the plate or grate Z.

The fuel contained in the receptacle h is always dry, as it is heated (preheated) by the hot combustion gases, and owing to its dryness lb is prevented from obstructing the tubular passage Z) and is always reliably conducted thereinto when the shaft 6 is turned.

I claim:

1. A heating stove for burning disintegrated lignite coke, comprising, in combination, with the stove body and a combustion chamber in the lower part thereof, a fuel storing vessel arranged over said chamber whereby it is heated by the fuel burned in said combustion chamber, means for conveying the fuel from said vessel to a space below the said COllllOllSblOIl chamber, and a fuel conveying worm so arranged below said combustion chamber as to be adapted to convey the fuel thereinto. i

2. A heating stove for burning disintegrated lignite coke, comprising, in combination with the stove body and a combustion chamber in the lower part thereof, a fuel storing vessel arranged below said chamber, a

tubular shaft extending from the lower end of said vessel to a space below the said chamber and adapted to conduct the fuel from above to below, a worm secured to that part ofsaid shaft which is located below the combustion space, and means for turning the said shaft with the worm.

8. A heating stove for burning disintegrated coke, comprising, in combination with the stove body and a combustion chamber in the lower part thereof, a fuel storing vessel arranged below said chamber, a tubular shaft extending from the lower end of said vessel to a space below the said chamber and adapted to conduct the fuel from above to below, a worm secured to that part of said shaft which is located below the combustion space, a vertical solid shaft connected at its lower end with the upper'end of said tubular shaft and extending upwardly through the said storing vessel, and means for turning said solid shaft, substantially as set forth.

at. A heating stove for burning disintegrated lignite coke, comprising,in combination with the stove body and a combustion chamber in the lower part thereof, a'perforated plate forming the bottom of said chamber and having a large central opening, a tubular shaft extending from the lower end of said vessel to a space below the said chamber and adapted to'conduct the fuel from above to below, a worm secured to that part below the said chamber and adapted to conduct the fuel from above to below, a worm secured to that part of said shaft which is located below the combustion space and having a diameter corresponding to that of said large opening; a vertical solid shaft connected at its lower end with the upper end of said tubular shaft and extending upward ly through the said storing vessel, and a' crank secured to the upper end of this shaft, substantially as set forth.

In testimony whereof I aflix my signature.

WAL TER REMPEN.- 

